Overview
Manuals
AC and DC Loads
Relay Switching
Compression Contacts
Features:
- Sixteen electromechanical relay contacts for the PDOX02 system.
- 5 A at 120 V AC resistive load; 100 mA minimum contact current.
- Compression terminations and individual 6 A, 125 V slow-blow fuses.
Honeywell MC-TDOR12 is a coated relay field termination assembly for sixteen PDOX02 output commands. The field connections use compression terminals, and each output has an individually selected normally open or normally closed contact form. Silver-alloy electromechanical contacts provide the documented channel isolation. This board is intended for the stated power-contact service, not low-level signal switching or high-frequency pulse generation, and it must be matched to the actual field load.
The specification allows 5 A at 120 V AC for a resistive load, but only 0.5 A at 125 V DC; a separate 2 A rating applies at 30 V DC. The minimum load current is 100 mA. Each contact has a 22-ohm/0.1-microfarad suppression network and a 6 A, 125 V slow-blow fuse. With a 15 ms maximum operate or release time and a 360-cycle-per-hour rated-load limit, the relay behavior must be considered in the process command sequence.
The MC-TDOR12 51309148-175 Honeywell Coated Compression-Terminal Relay Assembly may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Honeywell MC-TDOR12 51309148-175 official technical documentation and product links.
This multi-page Honeywell technical document contains the exact model and its technical data. Apply the values to the supplied type number and verify its revision before installation.
The load-current rating changes with voltage and AC or DC service. Five amperes is the 120 V AC resistive rating, while the specified 125 V DC limit is 0.5 A. Apply the manufacturer load derating and minimum current requirement to every connected circuit.
Operate and release times are each 10 ms typical and 15 ms maximum. The rated-load repetition limit is 360 cycles per hour. These power relays are not a substitute for a high-speed pulse output; check the required command sequence and expected contact wear.
The field conductors terminate through compression connections on a size-B board. Preserve the terminal mapping and NO/NC jumper positions when moving from the installed assembly. Inspect the contact fuses and processor cable as part of the replacement, not only the external wire labels.
